Add tests for whitebox primitives creation, runtime, geometry, and serialization

tests/serialization/whitebox-primitives-json.test.ts

@@ -0,0 +1,31 @@
+import { describe, expect, it } from "vitest";
+
+import {
+  createRadialPrismBrush,
+  createWedgeBrush
+} from "../../src/document/brushes";
+import { createEmptySceneDocument } from "../../src/document/scene-document";
+import {
+  parseSceneDocumentJson,
+  serializeSceneDocument
+} from "../../src/serialization/scene-document-json";
+
+describe("whitebox primitive scene JSON", () => {
+  it("round-trips wedge and cylinder brushes through scene JSON", () => {
+    const document = createEmptySceneDocument({ name: "Primitive Scene" });
+    const wedge = createWedgeBrush({
+      id: "brush-wedge-json"
+    });
+    const cylinder = createRadialPrismBrush({
+      id: "brush-cylinder-json",
+      sideCount: 12
+    });
+
+    document.brushes[wedge.id] = wedge;
+    document.brushes[cylinder.id] = cylinder;
+
+    expect(parseSceneDocumentJson(serializeSceneDocument(document))).toEqual(
+      document
+    );
+  });
+});